Math, it’s all relative:

Pi = 3.14

3.14 ÷ 4 = 0.785

The area of a circle can be found by using the formula "Pi x radius² " or by the formula "diameter ² x 0.785"

1.732 is a number used often in three phase calculations.

The square root of 3 is 1.732

1.41 is the constant multiplier when determining 45°distance runs from a right angle (90°).

For a right angle triangle: A² + B² = C², (Opposite side² + Adjacent side² = Hypotenuse²).

The square root of 2 is 1.41

Btu per hour x 0.293 = Watts

Kilowatts x 1.341 = Horsepower

Kilowatt-hour x 3412.14 = Btu

Horsepower x 746 = Watts

Horsepower x 550 = Foot-pounds per second

Horsepower x 33000 = Foot-pounds per minute

Horsepower x 42.4072 = Btu per minute

Watts x 0.00134 = Horsepower

Watts x 44.2537 = Foot-pound force per minute

Watts x 0.0568 = Btu per minute

Watts x 3.412 = Btu per hour

Watt second x 1 = Joule

1 Mil = 0.001 Inches

1 Circular Mil = 0.7854 Square Mil

1.27 Circular Mils = 1 Square Mil

Circular Mil of a BUS Bar = (Mils Width x Mils Thickness) ÷ 0.7854

Circular Mil of a ROUND Conductor = (Diameter in Mils)²

Mils to Metric: 39.37 Mils = 1 Millimeter

Mils to Metric: 1550 Circular Mils = 1 Circular Millimeter

Mils to Metric: 1974 Circular Mils = 1 Square Millimeter

Micro = 0.000001

Milli = 0.001

Centi = 0.01

Deci = 0.1

Deka = 10

Hecto= 100

Kilo = 1,000

Mega= 1,000,000

F° = Degrees Fahrenheit

C° = Degrees Centigrade

Degrees Fahrenheit = 32 + (9/5 x C° )

Degrees Centigrade = 5/9 x ( F° - 32 )

1 Inch = 2.54 Centimeters

1 Centimeter = 0.3937 Inches

1 Inch = 25.4 Millimeters

1 Millimeter = 0.03937 Inches

1 Foot = 0.3048 Meters

1 Meter = 3.281 Feet

1 Yard = 0.9144 Meters

1 Meter = 1.094 Yards

1 Mile = 1.609 Kilometers

1 Kilometer = 0.6214 Miles

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